Finding the Third Proportional to 621,256 and 1,344,068

Step by Step Solution

1. Step 1: Write the proportion equation
   621,256 : 1,344,068 = 1,344,068 : x
2. Step 2: Convert to fraction form
   621,256/1,344,068 = 1,344,068/x
3. Step 3: Cross multiply
   621,256x = 1,344,068 × 1,344,068
4. Step 4: Simplify right side
   621,256x = 1,806,518,788,624
5. Step 5: Solve for x
   x = 1,806,518,788,624/621,256
6. Step 6: Final answer
   x = 2,907,849.24